This article reports a study that investigated student engagement and inhibitors of their engagement with developing employability skills via extra-curricular activities in Vietnamese universities. Content analysis of 18 interviews with students and statistical analysis of 423 students' responses to a paper-based survey showed that despite a variety of extra-curricular activities being frequently organised, students engaged in these activities just above a moderate level. The analysis revealed that students with different motivations as well as students from different university types, disciplines, and university years engaged differently with developing employability skills via this channel. Five inhibitors of their engagement were identified, including students' working part-time, a lack of information about extra-curricular activities, students' beliefs about participating bringing no benefits, competition with curriculum-based activities, and unprofessional organisation of these activities. The article discusses ways to improve student engagement with developing employability skills via extra-curricular activities.